Welding-tool.



L. WOLF.' y

WELDING TOOL.

l APPLICATION FILED MAYZI, 19H. 4 4 1,218,503. L Patented Mar. 6; 1917.vv

2 SHEETS-SWEET L. l

- STATES i LINUS WOLF, OF CHICAGO H'Eis'iirs, ILLINOIS.

e 'WELDING-Toon.'

k'irgeaiesoa Y Specica'ti'on of Letters Patent'.

'Application med may 21,191 4.` vseiialii'ro.senese..

it known that I, LINUS -WOLF, 'a cit'i- ;zcn of the' United States, residing at Chicago Heights', county of Cook, .State 'of 's Illinois, have invented an 'Improvement in' Welding-Tools, of which the following' de' scription, in connection with. the' accompanying drawing, is .a specification, like characters on -vthe drawing representing likev Parts.'A l

I:.Thisj V.inventionhas reference4 'to ldevices jfor autogenous metal .welding and devices fOrcuttin'g metals ini which 'use ,is made of lthe heat produced byburning a combustil 'Pw as.. Y l

The'inventionA has foran object to provide "lian, l`i'iiil'roved 4 tool .'of this character which 'niayfihe'conveni'ently manipulated.

'1Tl'1fe'- ii'iventionfurther has' for an' object tof-"provide an improved mixing'dev/ice in to provide an imf The nature and' ob]'ects of the invention" "will' more fully appear inthe following speci'cation and the accompanying draw-I' 5.5.-.

ings and' the novel features will be particu- "larly pointed out in the claims.

Referring to the drawings in which 'I' have illustrated a"selec'ted embodiment ofi'nvention; I 4 0.' Figure l'is' a 'view 'in' elevation of the assembled device;

01" Supplying. -a'n 'oxidizing gas attached to the tool;

45 A' Fig, 3 'is-'a' sectional detail v'iewof 'the main mixer; v l n Figgc' is a sectional' detail view` showing 'the manner of connecting certainparts o .themixerg t .y e

Fig.' 5 is a detail view of a cylindrical tubular member; j.. l*

Fig. 6' is a sectional detail view of a cou- Fig. Fig.

'8 is a sectiOnal'detailY- view qfthe valve; .f

bl e fgastlioroughly mixed with an oxidizing',

'convenience in illustration; and

provedv safety check 4valve to prevent baclr- 7 is a view'in elevation-of the saine; i

-`irianner as vvto 4form partitions'to prevent' the .passageogas along the tubularmember Fig. 9 isa sectional detail View .ofoneof'the deiiecting plates; Fig. 10 is a sectional view of of Fig. 11; v F 1g.. 11 is afsectional'detail view of the y y `the primary" Imxlng chamber takenl on the line -1'0 -'-10` primary mixing chamber taken on the line f mlXer; y

Fig. 14: is a detail view partly 'in section of the, means for.' supplying an 4oxidizing gasin front of the nozzle;

n detail views of the disks positioned in the loutlet of the primary Fig. 15 is al perspective view of a coupler; e

Fig. 16 is a detail view showing guiding means for controlling .the path' 'of move.-

ment of the nozzle the pivot-.member being shown as rotated out, of its true position for Fig. 17 isa detail view of thetruck 'for guidingthe nozzle. .l Y. The device shown in the drawing by 4.Way

[of illustration comprises a primary mixer' 1, a principal mixer 2 -and a nozzle 3. A.l flexible tube or hose-1 isprovidedto Vcon.A

nect the primary mixer with the main mixer mixer to provide convenientfmeans to control the flow of gas.

The main mixer which 'is Provided with a-se'ries of members each .having a 'number of' small holes through which. the gas mlust lpass and a se- Vand a valve.5 is inserted' adjacent the 'main vcomprises a chamber' '96. ries of delecting plates. to cause the gasto' change its direction frequently as it passes through the mixer. 'I have illustrated this 1 `mixer as comprising a main tubular member 6, Which in the'form shown is circular.

Heads 7 81 are provided at opposite ends. of the tubular member and these heads are' provided with inlet and outlet passages 75 and 761re'spectively. Within the tube are 'arranged a series of small tubular cylinders 9, 10, 11. Each cylinder is provided at one end with a vseries .of small'holes 12. The cylinders 9, 10, 11 are 'connected by similar couplers 13, le'w-hich serve also as parta."

tionsv and the cylinder'll is connectedto the head 48 by means'of a .coupler-15, and a' short "tubular member 1`6. Similar c o'ne-H lshaped defleetin'g. plates l17, 18, 19 are clamped l'at .the ends of "the cylinders and'.

lcontact with thel tubular` 'member 6 in' such :hand end of the mixer as shown in vFig. 3 and this with the plate Q is held in position against the end of the cylinder' 9, by means of a screw plug 2l. Eacliofthe couplers lll is provided with an annular groove as in- 'dicated at 25 and convenient 30. This shell may conveniently a series of holes 26 for thelpassage of the mixed gases. The coupler 15 is provided with a series of radial holes for the samepurpose. By this construction the gases are caused topassv through tlie mixer by a tortuous 4path and are several times divided into a laige number of small currents by meansoi:l the cylinders and couplers which are provided with the seriesV of holes.

The outlet passages 7G in the head S are closed by a safety check valve 27 and this valve is urged toward its seat by means of a spring 77 which is of -just sufficient ten sion so that the pressure will be overcome by the pressure of the gases upon the valve. A cap 28 secured to the yhead B provides connection for'the pipe 78 to which the nozzle 3 is connected and also presents a chamber for the valve 27.' The valve presents a considerable area so that if the gases back-fire the explosion will cause the valve to seat quickly thereby closing the outlets in the head 8 to prevent back-tiring into the mixer.

The mixer in this form serves as the handle of the tool and 'I prefer to provide a shield to protect vthe hand from the heat of the flame. trated this shield as comprising a metal shell 29, lined with asbestos as indicated at between'the cap 2S andthe head 8.

A truck 31 provides means to guide the tool to hold the nozzle in the correct position relative to the work and is secured to the tool as by'being clamped upon the tube 7S vand secured to he shield as indicated at 33. i The primary mixer to themain mixer in with a plurality of members having small holes to divide the flow of gas into a large number of small currents. rIlhis mixer coin'- piises a main casting 3l having a circular vmixing chamber 79. Inlets 35, 36 enter this chamber tangentially as indicated in Fig. 11. The inlets. preferably are so positioned that the gases entering through these inlets l is somewhat similar .will be'forcibly blown against each other so that an initial mixing will take place as they enter the chamber. vThe inlets may be made in any convenient way to provide attachment for pipes y novel and efficient joint as n I 'have illusbe clamped `ti'ated comprises a that it is-.providedsupplying the combusti-y ble and oxidizing gases respectively. A funnel shaped member 37 is secured to the castingel as by means of acoupling ring 3S,

bei' are provided disks 89, 40. One of these end of this funnel-shaped inem;

disks is provided with 4a series of holes as indicated at L1 and the other consists of a fine mesh wire screen. In the forin'illustrated thedisk `39 is positioned adjacent the mixing chamber.

The flexible hose-l is connected at its opposite ends to the respective mixers by a illustrated most clearly in Fig. 10. The funnel-sliaped member is provided with a corrugated ,tubular projection l2 onto which,v the end of the hose is forced. A tapered sleeve 43 is screwed onto the funnel-shaped member to securely clamp theiend of the hose against the corrugated tubular projection l2. `The hose-is preferably provided with a protective armor, in the formof a wire il, the end SO of which projects into a hole in the sleeve, thus securely anchoring the wire and holding it in position. is provided at the other end of thehose. The valve is illustrated in Fig. S. This valve comprises a casing/l5 having an inlet passage lb and an outlet passage 1LT. The casing is provided with an annular portion 4S. upon which a valve cap i9 Ais secured. A flexible diaphragm 50 is securedvat its edge to the annular portion L8 insucli manj ner as to provide 4agas tight. joint. Theconveniently escape of gas from' the valve casing istherefore impossible even if the cap does not fit accurately.

portion a projectioi'rl, iii the center of which is'positioned the inlet passage, preseiits a smooth surface 52 upon which seats a disk 523, serving as a valve. v spring 5l urges this valve from its` seat and means are provided to press against the iexible diaphragm and thus force the valve to its seat to close the inlet. The means illustlirust block and a. thumb screw 5G. It willbe seen that 'I have thus provided a valve which will not. become leaky upony the wearing of the parts and a valve whichdoes not depend upon the tightness of an)v packing to insure perfect operation. i I have illustrated in Fig. 1+ an-attachment for supplying an oxidizing gas in front of the nozzle. illustrated is designed to be secured to the main mixer and may easily be attached thereto upon removal of the hand shield. The nozzle El is attached to the tube connectving it with the mixer in such a manner that A similarconnection loc Atthe center of the annular This attachment as sleeve- 57 which vis designed t`o ft` upon the 'nozzle and'be clamped thereupon, a valve 58 'for controlling the supply of oxygen and i a flexibletube. 59, to be connected with the -supply of oxygen 'or other oxidizing glas.l

The v'alve illustrated comprises avalve casing 60",' a valve 61spring pressed toward 7 what I claim as new and rents, a flexible tubular connection between its seatandanoperatlng handle 62. A secondary nozzle 63 is secured to the sleeve and' preferably extends ysonnewhat beyond the end of the nozzle. 3. A tubeor pipe'64: conlnect'sthis'nozzle with the valve. The sleeve (is: secured in position vupon the nozzle by means of a set. screw 65.

Upon each side, ofthe sleeve V57 are pr`0- vided .hubs V566-67 which are threaded to receive stud bolts. pair of wheels at these 'points or if it is d esired to -cut upf'on an arc I may. attach one-A wheel 68 and a radius arm- 69. Adjustable upon this radius armA is a pivot 'member .70 which forthe purpose of clearness is illustrat'ed as rotated out of its operative posi-4 tion.

cientlyclear to one skilled in the ,art, from the foregoing descriptlon, without further explanation. I contemplate various modications as within the scopeof my invention.

Having fully described my invention, desire to secure byl Letters Patent is: y

' 1. A device of the character described comprising a primary mixer, a main mixer,

a flexible tubular connection between said mixers, a nozzle connected toreceive gas from said main mixer, and a safety check vvalve positioned between said main mixer and said nozzle.

2. In a device of the character -described a primary mixer comprising acircularv chamber having tangentially entering .gas inlets, a main mixer havino' a series ofdefleeting plates and means for dividing the flow of mixed'gases into several small cursaid primary and main mixers, anda nozzle i connected to. said main mixer. y

-3. -In a'deviceof the class described, a" gas-mixing element comprising an outer tubular member,- an inner member present- .ing a plural-ity of chambers, deflecting plates interposed between the innerand outer members and dividingl the space between them into' compartments,'each chamber -having communication with two adjacent compartments whereby the gases are compelled to pass through the compartments and sol chambers alternately.

4.1111 adevice of the character described,

a-mixer comprising an outer tubular inember,heads at opposite ends thereof, an inner-y tubular member having a-plurality-of -small holes near one end thereof to: provlde inlets thereof.

I- may4 either attach a- The operation ofthe device will be siiliand a plurality of small holes near the opposite end thereof. to'provide outlets, and a deflecting plate'surrounding said inner tubular member and engaging said outer tubular member' to cause all gases 'which 'pass through4 said outeri tubular member to flow. through theilnlet holes' into said vinner tubu-4 and out through the outletholes,

lar member 5. Ina device of the class described, a gasvmixing device comprising a chamber, a series of hollow elements within the chamber,l eachtprovided'with a` series of -small inlet openings and ya series of outlet openings,

and delec'ting plates interposed between said hollow elements 'and the walls of said chamber. and .constructed to causeV the gases to pass successively -through the' hollow Selefments. 6. In a device ofthe character describda mixer comprising a tubular chamber, a s'e ries .of tubular members centrally positioned and a series-of cone-shaped delcting plates surrounding 'the tubular members of. said;

lin saidtubular chamber'and each'provided at opposite'ends with a series of small, holes,

series and positioned with :their open ends toward `each other, the larger ends of alternate tubular members' fitting against the .Wallof said tubular chamber, the .deiiecting platesbeing so arranged that gases passing through said lmixing chamber lwill pass aroundthe outer edge of one cone-shaped delectingplate through th small .holes into'.

inlets 'and having an axially'disposed outlet,

and a plurality'of disks disposed across said outlet, one of said disks consisting of a per' disk consisting forated 'plate and the other of a wire meshscreen.

perforated plate disposed in .mixer comprising a circular mixing chamber: having a Yplurality ofjtangentially disposed '9. Ina deviceof the character described, I

a primary mixer comprising a circular chamber; having tangentiallyfentering gas inlets a main mixer having aseries of de 'lectin plates .and meansvfor dividin the'ow of mlxedgases v1ni .f l several sma currents, a

connection betweenfsaid primary and main 121i mixers, and ano zleconnec'ted to said main mixer.

v10. -In afdevice of the 'class described, a

rimar .mixer having rovision for intro- P. s

ducing two diierent gases thereto and for name tothis specification, in the presence mixing` Said gases.Jv n main mixer, L lexibie of tivo subscribing Witnesses. tubular connection between said mixers and w through which both gases are delivered to LNUS VOLF' 5 the main mixer, :uid a nozzle connected to Witnesses:

the main mixer to receive gas therefrom. J. DONNOVAN,

In testimony whereof, yhave signed my E. H. SlEKMAN N. 

